Based on a true 1996 murder case that Miller has been developing as a film since 2005, the film stars Tatum as Mark Schultz and Ruffalo as his brother David. Both are Olympic Wrestling Champions who visit John du Pont (Steve Carell), a multimillionaire and paranoid schizophrenic who has erected a wrestling training facility named Foxcatcher on his personal estate in Pennsylvania. In 1996, Du Pont was accused of murdering one of his wrestlers, whom he was convinced was part of a conspiracy to kill him.